NeuVision 500. Abundant and friendly display interface, multifold ECG display screen:

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1 NeuVision 500 Features This monitoring system may be used to monitor patient s 6 physiological parameters: ECG, respiratory rate, body temperature, non-invasive blood pressure (NIBP), pulse oxygen saturation (SpO 2 ), and pulse rate. It is lightweight, easy to carry and operate; 7 high-resolution ( pixel) color LCD to display patient s ECG waveform, respiratory waveform and SpO 2 waveform; Abundant and friendly display interface, multifold ECG display screen: Main monitoring screen: displays the information of all the waveforms and parameters visually. Observing screen: heart rate value and SPO 2 value display in big fonts. Seven lead waveforms on one screen: displays the information of 7 ECG lead waveforms and different monitoring parameters on one screen. Five channel real-time waveforms and two hours trends viewing: intuitionistic knowing the physiological status of patient. oxycrg screen: displays heart rate trend, SpO 2 trend, respiration trend or waveform simultaneously on oxycrg screen, to know the instantaneous condition change of patient. Intuitionistic and easy calculation. Medical consistent calculation and analysis can accurately figure out the speed of medicine supply and dose, to observe the relation

2 between amount and effect indirectly. Convenient and applied accessorial tourniquet function, according to patient s condition, different tourniquet cuff pressure can be set. Automatic analysis of 20 arrhythmia waveforms and VPC, waveform freezing function and automatic ST segment measurement and manual analysis; Up to 480 hours statistic data of ECG, ST,TEMP, SpO 2, RESP and NIBP trends; value of each case; 100 groups of arrhythmia cases data and the corresponding HR, TEMP, SpO 2, RESP and pulse Storage and recall of a list of 800 groups of NIBP measurement data, as well as heart rate, body temperature, respiratory rate and SpO 2 /pulse rate when the measure of blood pressure is taken; 36 hours of ECG data storage and recall; High precision NIBP measuring module; Special SpO 2 measuring device, which ensures the accuracy of SpO 2 and pulse rate measures; Visual and audible alarm, recall of alarm events; Flexible high and low alarm limits setting function; Real-time monitoring of battery capacity, when the battery power is insufficient, low battery voltage alarm indication will display on LCD screen. Easy to color-code and change the color of the font, background and waveforms if need to be; Resistance against defibrillator and electrosurgical knife interference, detects and filters the pacemaker-generated signals, and high safety level; Able to be used along with cardiac pacemaker; Adult/Infant mode which may be selected via the menu, to better suit the adult and infant patient; Networking with the central station as a part of the central network; ECG Monitoring 1. Input signals range in amplitude: ±(0.4mVp ~ 5mVp) 2. Heart rate display range: 20bpm~300bpm 3. Heart rate display accuracy: ±1% or ±2bpm, whichever is greater.

3 4. Heart rate alarm delay time: 10s 5. Sensitivity selection: 1/2, 5mm/mV tolerance: ±5% 1, 10mm/mV tolerance: ±5% 2, 20mm/mv tolerance: ±5% 6. Sweeping speed: 12.5mm/s, 25mm/s, 50mm/s tolerance: ±10% 7. ECG noise level: 30μVP-P. 8. ECG input loop current: 0.1μA 9. Differential input impedance: 5MΩ 10. Common-mode rejection ratio (CMRR): 89dB 11. Time constant: Monitoring mode: 0.3s 12. Frequency response: Diagnostic mode: 3.2s Monitoring mode: 0.5 Hz~40Hz( +0.4dB -3.0dB ) Diagnostic mode: 0.05 Hz~75Hz( +0.4dB -3.0dB ) Standards: Meets the performance standards of IEC The following references particular of IEC Respiration, leads-off s Applied current less than 0.2 microamperes. Tall T-wave rejection. -wave of 0.8 mv amplitude will not affect hea Heart rate averaging Response to irregular rhythm. determination. Averages eight at most of recent beats having RR interv fall within the acceptable limits. A1 Ventricular bigeminy-80bpm A2 Slow alternating ventricular bigeminy-60bpm A3 Rapid alternating ventricular bigeminy-120bpm Heart rate meter response time A) Change from 80 to 120BPM: 4 to 6sec B) Change from 80 to 40BPM: 6 to 7sec Waveform B1, Amplitude Average Time to Alarm 0.5 mv 4sec 1 mv 4sec 2mV 4sec Waveform B2, Amplitude Average Time to Alarm 1mV 3sec 2mV 3sec mv 3sec

4 Pacemaker pulse rejection With the exceptions noted below, the monitor will reject all pacemaker pulse having amplitudes of ±2 to ±700mV and pulse widths from 0.1 to 2.0ms, with and without under/overshoot. Following are pacer pulse conditions which the monitor will reject, but which are Pacer pulse Pacer amplitude=±300mv width=2ms, double pulse, without Pacer pulse width=2ms, single and double pulse, with 2mV over/undershoot, no QRS Pacer pulse width=0.1ms, double pulse, with 2mV over/undershoot, ineffective pacing Pacer amplitude=±300mv Pacer amplitude=±300mv,-400mv RESP Monitoring 1. RESP rate measuring range: 0rpm~120rpm 2. RESP rate accuracy: ±5% or ±2 rpm, whichever is greater 3. RESP rate alarm limit setting range: 0rpm~120rpm. 4. Alarm tolerance: ±5% or ±2 rpm, whichever is greater TEMP Monitoring 1. TEMP measuring range: 25.0 ~ TEMP measuring accuracy: ± TEMP responding time: 150s NIBP Monitoring 1. Measuring method: Oscillometric Technique 2. Pneumatic pressure measuring range: 0 mmhg~300mmhg 3. Accuracy of pressure measurement: ±3 mmhg

5 4. Cuff inflation time: <10 seconds (typical adult cuff) 5. Measurement time on the average: < 90 seconds 6. Air release time while the measurement is canceled: <2 seconds (typical adult cuff) 7. Initial cuff inflation pressure Adult: <180 mmhg; Infant: <120 mmhg; 8. Overpressure protection limit Adult: 300 mmhg; Infant: 240mmHg; 9. NIBP measurement range: press(unit) Adult Infant SYS mmhg 40~255 40~200 MAP mmhg 20~215 20~165 DIA mmhg 10~195 10~ NIBP accuracy: Maximal mean difference: ±5 mmhg Maximal standard deviation: 8 mmhg 11. Measurement mode: Manual, Auto, STAT SpO 2 Monitoring 1. Transducer: dual-wavelength LED Wavelength: Red light: 660 nm, Infrared light: 905 nm. Maximal optical output power: less than 2mW maximum average 2. SpO 2 measuring range: 35%~100% 3. Low perfusion capability: 0.4%~5% 4. SpO 2 measuring accuracy: not greater than 3% for SpO 2 range from 70% to 100% *NOTE: accuracy defined as root-mean-square value of deviation according to ISO Low perfusion performance: the declared accuracy is attained when the pulse amplitude modulation ratio is as low as 0.4% Pulse Rate Monitoring 1. Pulse rate measuring range: 30bpm~240bpm 2. Pulse rate measuring accuracy: ±2bpm or ±2%, whichever is greater. Other Technical Specifications 1. Power supply: 100~240VAC, 50/60Hz

6 2. Power consumption: see the nameplate on the monitor 3. Rechargeable Li-ion battery specification: 14.8V 2200mAh 4. Display mode: 7 inches TFT color LCD Resolution: pixel 5. Alarming mode: Audible & visible alarm 6. Communication: Serial/Net port Classification Safety standard: IEC The type of protection against electric shock Class I equipment. The degree of protection against electric shock Type BF and CF applied parts Electro-Magnetic Compatibility: Group I, Class A The degree of protection against harmful ingress of water Ordinary equipment without protection against ingress of water. The safety degree of flammable gas Not suitable to use in the environment where flammable gas exits.